1999A&A...345..547Y

Query : 1999A&A...345..547Y

1999A&A...345..547Y - Astronomy and Astrophysics, volume 345547-552 (1999/5-2)

Polarimetry of the young Herbig Ae star HD 139614. Differences of polarimetric behaviour of Vega-type stars.

YUDIN R.V., CLARKE D. and SMITH R.A.

Abstract (from CDS):

We present optical polarimetric data of the Herbig Ae star HD 139614 and discuss its behaviour relative to similar stars. In spite of a low level of polarization (≃0.05-0.2%), polarimetric variability on a time-scale of days was detected during a four night synoptic study. The difference in the level of the polarization for HD 139614 relative to other Herbig Ae/Be stars such as HD 141569, HD 142666 and HD 169142 might be due to the inclinations and viewing aspects of their circumstellar disks and to their different evolutionary stages. This hypothesis is consistent with the photometric behaviour of these stars, their vsin i values and spectral energy distribution in the near and far IR.

Abstract Copyright: ∼

Journal keyword(s): polarization - stars: circumstellar matter - stars: individual: HD 139614 - stars: pre-main sequence

Simbad objects: 27

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Number of rows : 27
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * d Lup Be* 15 35 53.24806 -44 57 30.1982 3.68     6.70   B3V 129 0
2 * ome Lup PM* 15 38 03.2069631593 -42 34 02.408479318 7.47 5.75 4.33 3.30 2.57 K3III 66 0
3 HD 139614 Or* 15 40 46.3820275416 -42 29 53.538761832   8.47 8.24     A9VekA5mA5(_lB) 243 0
4 * 25 Ser SB* 15 46 05.6365266672 -01 48 15.085342728 4.96 5.37 5.39     B8IV/V 121 0
5 HD 140861 PM* 15 47 25.5186302856 -40 11 39.150697272   7.301 6.414     G5IIICH1 33 0
6 * mu. Ser ** 15 49 37.20696 -03 25 48.7358 3.39 3.49 3.53 3.54 3.59 B9.5III 119 0
7 HD 141569 Or* 15 49 57.7482550392 -03 55 16.341617064 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 578 0
8 * lam Lib SB* 15 53 20.0538968232 -20 10 01.471003716 4.43 4.997 5.027     B3V 223 0
9 HD 142165 SB* 15 53 53.9142283800 -24 31 59.373289920 4.95 5.350 5.372     B5V 146 0
10 HD 142184 Be* 15 53 55.8637866220 -23 58 41.143370530 4.77 5.352 5.402     B2V 261 1
11 HD 142666 TT* 15 56 40.0221861696 -22 01 40.005872148 9.41 9.37 8.82 8.31 8.01 F0V_sh 306 0
12 HD 142863 * 15 57 02.9108666616 -02 59 19.257344916   9.37 8.98     A4IV/V 23 0
13 HD 143396 ** 16 00 16.5114570345 -05 04 53.918564644   8.67 8.23     A3III/IV 17 0
14 * del Sco SB* 16 00 20.00528 -22 37 18.1431 1.30 2.20 2.32 2.36 2.49 B0.3IV 776 0
15 * bet01 Sco bC* 16 05 26.2319826 -19 48 19.630018 1.68 2.55 2.62 2.60 2.69 B1V 577 0
16 * ome Sco bC* 16 06 48.4249866846 -20 40 09.079866331 3.10 3.92 3.97 3.91 3.99 B1V 492 0
17 HD 167402 * 18 16 18.6881880000 -30 07 29.620072632 8.07 8.96 9.04 9.62   O9.5/B0Ib/II 77 1
18 PN H 1-63 PN 18 16 19.3441096560 -30 07 36.067926540       14.232   O? 132 1
19 HD 167599 * 18 17 16.0757233056 -31 17 50.186825052 7.71 7.52 7.49     B7/8II 24 0
20 HD 167665 SB* 18 17 23.7587105112 -28 17 20.218638480   6.87 6.36     F9VFe-0.8CH-0.4+T4 125 0
21 HD 167775 Em* 18 17 56.2599295464 -29 15 26.164626840 8.11 8.53 8.6     B5IV/Vn(e) 25 0
22 HD 168785 * 18 22 45.9040189608 -30 08 26.177051004 7.79 8.52 8.51 9.40   B2II 71 0
23 HD 169100 * 18 24 21.7205531664 -30 08 16.627485084   9.45 9.3     A1III 14 0
24 HD 169142 Ae* 18 24 29.7799891464 -29 46 49.327400568   8.42 8.16     F1VekA3mA3_lB? 535 0
25 HD 169435 ** 18 24 37.4853842736 -00 58 03.977945112       9.586   K1(III) 6 0
26 HD 169872 * 18 28 11.0065547760 -32 28 11.770196772 7.39 7.76 7.78     B8II 15 0
27 HD 170638 Em* 18 31 50.4791810952 -30 04 09.025151520 7.89 8.41 8.5     B3II/III 22 0

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